package com.jaydroid.component_lib.utils;

import android.app.Activity;
import android.content.Context;
import android.util.Log;
import android.view.View;
import android.view.inputmethod.InputMethodManager;

/**
 * 键盘相关工具类
 *
 * @author gaoxiaoiduo
 * @version 1.0
 * @date 2019-11-05 18:03
 */
public class KeyboardUtils {
    private KeyboardUtils() {

        throw new UnsupportedOperationException("u can't instantiate me...");
    }

  /*
   避免输入法面板遮挡
   <p>在manifest.xml中activity中设置</p>
   <p>android:windowSoftInputMode="adjustPan"</p>
  */

    /**
     * 动态显示软键盘
     *
     * @param activity activity
     */
    public static void showSoftInput(final Activity activity) {
        if (activity == null) {
            return;
        }

        View view = activity.getCurrentFocus();
        if (view == null) {
            view = new View(activity);
        }
        InputMethodManager imm =
                (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);
        if (imm == null) {
            return;
        }
        imm.showSoftInput(view, InputMethodManager.SHOW_FORCED);
    }

    /**
     * 动态显示软键盘
     *
     * @param view 视图
     */
    public static void showSoftInput(final View view) {

        view.setFocusable(true);
        view.setFocusableInTouchMode(true);
        view.requestFocus();
        InputMethodManager imm =
                (InputMethodManager) Utils.getApp().getSystemService(Context.INPUT_METHOD_SERVICE);
        if (imm == null) return;
        imm.showSoftInput(view, InputMethodManager.SHOW_FORCED);
    }

    /**
     * 动态隐藏软键盘
     *
     * @param activity activity
     */
    public static void hideSoftInput(final Activity activity) {
        if (activity == null) {
            return;
        }
        View view = activity.getCurrentFocus();
        if (view == null) view = new View(activity);
        InputMethodManager imm =
                (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);
        if (imm == null) return;
        imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
    }

    /**
     * 动态隐藏软键盘
     *
     * @param view 视图
     */
    public static void hideSoftInput(final View view) {

        InputMethodManager imm =
                (InputMethodManager) Utils.getApp().getSystemService(Context.INPUT_METHOD_SERVICE);
        if (imm == null) return;
        imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
    }

    /**
     * 切换键盘显示与否状态
     */
    public static void toggleSoftInput() {

        InputMethodManager imm =
                (InputMethodManager) Utils.getApp().getSystemService(Context.INPUT_METHOD_SERVICE);
        if (imm == null) return;
        imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
    }

    /**
     * 点击屏幕空白区域隐藏软键盘
     *
     * <p>根据EditText所在坐标和用户点击的坐标相对比，来判断是否隐藏键盘
     *
     * <p>需重写dispatchTouchEvent
     *
     * <p>参照以下注释代码
     */
    public static void clickBlankArea2HideSoftInput() {

        Log.d("tips", "U should copy the following code.");
    /*
    @Override
    public boolean dispatchTouchEvent(MotionEvent ev) {
        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
            View v = getCurrentFocus();
            if (isShouldHideKeyboard(v, ev)) {
                InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
                imm.hideSoftInputFromWindow(v.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
            }
        }
        return super.dispatchTouchEvent(ev);
    }
    // 根据EditText所在坐标和用户点击的坐标相对比，来判断是否隐藏键盘
    private boolean isShouldHideKeyboard(View v, MotionEvent event) {
        if (v != null && (v instanceof EditText)) {
            int[] l = {0, 0};
            v.getLocationInWindow(l);
            int left = l[0],
                    top = l[1],
                    bottom = top + v.getHeight(),
                    right = left + v.getWidth();
            return !(event.getX() > left && event.getX() < right
                    && event.getY() > top && event.getY() < bottom);
        }
        return false;
    }
    */
    }
}
